Patent GB-477673-A (GB)
Title: A process for the manufacture of organic addition compounds containing heavy metals
IPC: C10L1/30
Filed: 1936-03-30
Abstract: Complex double compounds containing metals are prepared by combining non-noble heavy metal compounds derived from amines, acid amides including urea, nitriles, aminoalcohols or oximes which in aqueous or alcoholic solution do not have an acid reaction to phenol phthalein, with completely alkylated and/or arylated compounds of nitrogen, phosphorus or sulphur not substituted in the alkyl or aryl groups, or with alkyl and/or aryl phosphites.  The metal compounds may be prepared in situ, e.g. by reacting the oxides or hydroxides of the metals with the nitrogen-containing organic compounds.  The products are useful as additions to hydrocarbon mixtures; when added to gasolines they improve their anti-knock properties, whilst in the case of lubricants they render them suitable as extreme pressure lubricants or act as anti-oxidants.  Examples of organic metallic compounds are cupro-urea, silver acetamide, cupro-aniline, nickel formamide and formanilide, cobalti - formanilide, cupro - acetamide and cupric isovaleramide; second components specified are pyridine, trimethylamine, triethylamine, triethylphosphine, tri-n-propylphosphine, triphenylphosphine, triethylphosphite, tri - n - propylphosphite, thioethylether, dibutyl sulphide and p ethylene-diethylsulphide.  Examples are given of the preparation of (1) silver acetamide-triethylphosphine by interaction of sodium acetamide, triethylphosphine and silver chloride in a benzene suspension; (2) cupric urea-tri-n-propylphosphite by heating tri-n-propylphosphite, cupric oxide and urea in a nitrogen atmosphere; (3) silver acetamide-tri-n-propylphosphine by boiling the phosphine in a nitrogen atmosphere with a mixture of silver oxide, acetamide and benzene; (4) nickel formanilide-tri-n-propylphosphite by heating the phosphite with nickel hydroxide and formanilide in a nitrogen atmosphere.  The double compounds cupro-urea-triethylphosphine, silver acetamide-triethylphosphite, cupro - aniline - triethylphosphite, nickel formamide - triethylphosphite, cobalti - formanilide - tripropylphosphite, cupro acetamide - trimethylamine and cupric isovaleramide-dibitutyl sulphide are referred to.  The samples furnished under Sect. 2 (5) comprise (1) cupro-ethanolamine-triethylphosphite prepared by heating cuprous oxide, ethanolamine and the phosphite together; (2) cupro - propionitrile - tri - n - propylphosphine obtained from cuprous oxide, propionitrile and the phosphine; (3) cupro - acetamide - oxime-triethylphosphine prepared by interaction of acetamide - oxime hydrochloride, cuprous chloride, triethylphosphine and a solution of sodium in alcohol.  The Specification as open to inspection under Sect. 91 describes the combination of heavy metal compounds derived from non-acidic organic nitrogen-containing compounds with completely alkylated and/or arylated compounds of nitrogen, phosphorus, arsenic, antimony, sulphur, selenium or tellurium not substituted in the alkyl or aryl groups, or with esters of the acids of these elements.  The metal compounds may be derived from additional classes of compounds, viz. triazenes and benzene azo compounds. Other second components specified are triethylstibine, ethyl thioglycollic acid ethyl ester, dimethylselenium and dimethyltellurium.  This subject-matter does not appear in the Specification as accepted.ALSO:Complex double compounds containing metals, which are useful as additions to gasoline and lubricants, are prepared by combining, on the one hand, non-noble heavy metal compounds derived from amines, acid amides including urea, nitriles, amino-alcohols or oximes which in aqueous or alcoholic solution do not have an acid reaction to phenol phthalein, and on the other hand, completely alkylated and/or arylated compounds of nitrogen, phosphorus or sulphur not substituted in the alkyl or aryl group, or alkyl and/or aryl phosphites.  Added to gasolines, the compounds improve their anti-knock properties, whilst their addition to lubricants render them suitable as extreme-pressure lubricants or act as anti-oxidants.  Examples of organic metallic compounds are cupro-urea, silver acetamide, cupro-aniline, nickel formamide and formanilide, cobalt-formanilide, cupro-acetamide and cupric isovaleramide; second components specified are pyridine, trimethylamine, triethylamine, triethylphosphine, tri-n-propylphosphine, triphenylphosphine, triethylphosphate, tri-n-propylphosphite, thioethylether, dibutyl sulphide and ethylene-diethylsulphide.  Examples are given of the preparation of silver acetamide-triethylphosphine, cupric urea-trin-propylphosphite, silver acetamide-tri-n-propyl-phosphine and nickel formanilide-tri-n-propylphosphite.  The double compounds cupro-urea-triethylphosphine, silver acetamidetriethylphosphite, cupro-aniline-triethylphosphite, nickel formamide-triethylphosphite, cobaltic - formanilide - tripropylphosphite, cupro-acetamide - trimethylamine and cupric isovaleramide-dibutyl sulphide are referred to.  The samples furnished under Sect. 2 (5) comprise (1) cupro-ethanolamine-triethylphosphite, (2) cupro-propionitrile-tri-n-propylphosphine, and (3) cupro-acetamide-oxime-triethylphosphine.  The Specification as open to inspection under Sect. 91 describes the combination of heavy metal compounds derived from non-acidic organic nitrogen-containing compounds with completely alkylated and/or arylated compounds of nitrogen, phosphorus, arsenic, antimony, sulphur, selenium or tellurium not substituted in the alkyl or aryl group, or with esters of the acids of these elements.  The metal compounds may be derived from additional classes of compounds, viz. triazenes and benzene azo compounds. Other second components specified are triethylstibine, ethyl thioglycollic acid ethyl ester, dimethyl selenium and dimethyltellurium.  This subject-matter does not appear in the Specification as accepted.